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Loans and Allowance for Loan Losses - Schedule of Troubled Debt Restructurings On Financing Receivables (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017 USD ($) Number	Dec. 31, 2016 USD ($) Number
Troubled debt restructurings, Number of loans | Number	19	17
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 2,545	$ 2,746
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	$ 3,882	$ 3,983
One-To-Four Family Residential Real Estate [Member]
Troubled debt restructurings, Number of loans | Number	2	2
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	$ 175	$ 185
Commercial [Member]
Troubled debt restructurings, Number of loans | Number		2
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 323	$ 342
Financing Receivable, Modifications, Recorded Investment, Accruing Balance		$ 13
Agriculture [Member]
Troubled debt restructurings, Number of loans | Number	7	4
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 868	$ 838
Financing Receivable, Modifications, Recorded Investment, Accruing Balance		$ 44
Municipal [Member]
Troubled debt restructurings, Number of loans | Number	2	2
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	221	258
Construction and Land [Member]
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	581	588
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	1,349	1,338
Commercial Real Estate [Member]
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	61	64
Financing Receivable, Modifications, Recorded Investment, Accruing Balance	$ 2,137	$ 2,145
Construction and Land [Member]
Troubled debt restructurings, Number of loans | Number	4	4
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 692	$ 599
Commercial Real Estate [Member]
Troubled debt restructurings, Number of loans | Number	4	3
Financing Receivable, Modifications, Recorded Investment, Non Accrual Balance	$ 69	$ 300

X

- Definition

The amount of the outstanding recorded investment related to accruing balance of financing receivables that have been modified by troubled debt restructurings.

+ References

No definition available.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

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